Audi A8 2003 Workshop Manual page 129

8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
– Using adapter - T40058- turn the crankshaft in the normal di‐
rection of rotation -arrow- to TDC.
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Note
The adjustment pin - T40060- has a flat -2- which makes it
♦
easier to insert when the locating bores in the camshaft and
cylinder head are not exactly in line.
The adjustment pin is inserted initially so that the side pin -1-
♦
is perpendicular to the imaginary line between the adjustment
pin and the centre of the camshaft.
To obtain the correct TDC position, the side pin -1- must then
♦
be turned 90° -arrow- so it is in line with the imaginary line
between the adjustment pin and the centre of the camshaft.
– Check that camshafts on both cylinder heads are positioned
at TDC.
• It should be possible to lock both camshafts with adjustment
pin - T40060- .
• The side pin -arrow- in each adjustment pin - T40060- must
be in line with the imaginary line between the adjustment pin
and the centre of the camshaft.
Cylinder bank 1 (right-side):
Cylinder bank 2 (left-side):
Audi A8 2003 ➤
123
1. Chain drive